ENGINE
5-66 Z580/Z593/Z595 Diesel Service Manual
5
Checking the Radiator Coolant
Note: Do not open the radiator cap. Doing this may
introduce air into the cooling system.
1. Position the machine on a level surface, stop the
engine, and set the parking brake.
2. Raise the seat.
3. With the engine cool, check the overfl ow bottle level.
The fl uid needs to be up to the indicator line (bump)
on the outside of the overfl ow bottle (Fig. 646).
4. If the coolant level is low, add a 50/50 mix of extend-
ed life antifreeze/Dex-Cool® and water to the over-
fl ow bottle. Fill the overfl ow bottle to the indicator line
on the bottle (Fig. 646).
Fig 646 fi g. 51 G001103
Draining the Water Separator
1. Position the machine on a level surface.
2. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Locate the water separator at the back left of the
machine.
5. Place a drain pan below the water separator.
6. Open the drain valve on the water separator
approximately one turn to allow water and other
contaminates to drain (Fig. 645).
7. Close the drain valve when only diesel fuel comes
out (Fig. 645).
Fig 645 fi g. 42 G007169
A. Drain valve C. Back of machine
B. Water separator
A. Antifreeze overfl ow B. Indicator line on side
bottle of overfl ow bottle
C
B
A
B
A
A
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